164063443 has 2 divisors, whose sum is σ = 164063444. Its totient is φ = 164063442.

The previous prime is 164063441. The next prime is 164063467. The reversal of 164063443 is 344360461.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (344360461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164063443 - 2¹ = 164063441 is a prime.

Together with 164063441, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (164063441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82031721 + 82031722.

It is an arithmetic number, because the mean of its divisors is an integer number (82031722).

Almost surely, 2^164063443 is an apocalyptic number.

164063443 is a deficient number, since it is larger than the sum of its proper divisors (1).

164063443 is an equidigital number, since it uses as much as digits as its factorization.

164063443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 164063443 is about 12808.7252683474. The cubic root of 164063443 is about 547.4409413441.

The spelling of 164063443 in words is "one hundred sixty-four million, sixty-three thousand, four hundred forty-three".